Adding upstream version 1:9.18.19.upstream/1%9.18.19upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

5 files changed, 2439 insertions, 0 deletions

diff --git a/tests/libtest/Makefile.am b/tests/libtest/Makefile.am
new file mode 100644
index 0000000..6bd4b80
--- /dev/null
+++ b/tests/libtest/Makefile.am
@@ -0,0 +1,25 @@
+include $(top_srcdir)/Makefile.top
+
+AM_CPPFLAGS +=			\
+	$(LIBISC_CFLAGS)	\
+	$(LIBDNS_CFLAGS)	\
+	$(LIBNS_CFLAGS)		\
+	$(LIBUV_CFLAGS)		\
+	-I$(top_srcdir)/lib/isc
+
+LDADD +=			\
+	$(LIBISC_LIBS)		\
+	$(LIBDNS_LIBS)		\
+	$(LIBNS_LIBS)
+
+check_LTLIBRARIES = libtest.la
+
+libtest_la_SOURCES =			\
+	../include/tests/dns.h		\
+	../include/tests/isc.h		\
+	../include/tests/ns.h		\
+	dns.c				\
+	isc.c				\
+	ns.c
+
+include $(top_srcdir)/Makefile.tests
diff --git a/tests/libtest/Makefile.in b/tests/libtest/Makefile.in
new file mode 100644
index 0000000..8e89774
--- /dev/null
+++ b/tests/libtest/Makefile.in
@@ -0,0 +1,1157 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Hey Emacs, this is -*- makefile-automake -*- file!
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+AM_CFLAGS = $(STD_CFLAGS) -I$(top_srcdir)/tests/include $(TEST_CFLAGS)
+AM_CPPFLAGS = $(STD_CPPFLAGS) -include $(top_builddir)/config.h \
+	-I$(srcdir)/include $(LIBISC_CFLAGS) $(LIBDNS_CFLAGS) \
+	$(LIBNS_CFLAGS) $(LIBUV_CFLAGS) -I$(top_srcdir)/lib/isc \
+	$(CMOCKA_CFLAGS) -DNAMED_PLUGINDIR=\"$(pkglibdir)\" \
+	-DTESTS_DIR=\"$(abs_srcdir)\"
+AM_LDFLAGS = $(STD_LDFLAGS) $(am__append_1)
+LDADD = $(LIBISC_LIBS) $(LIBDNS_LIBS) $(LIBNS_LIBS) \
+	$(top_builddir)/tests/libtest/libtest.la $(CMOCKA_LIBS)
+LIBISC_CFLAGS = \
+	-I$(top_srcdir)/include				\
+	-I$(top_srcdir)/lib/isc/include			\
+	-I$(top_builddir)/lib/isc/include
+
+LIBISC_LIBS = $(top_builddir)/lib/isc/libisc.la
+LIBDNS_CFLAGS = \
+	-I$(top_srcdir)/lib/dns/include			\
+	-I$(top_builddir)/lib/dns/include
+
+LIBDNS_LIBS = \
+	$(top_builddir)/lib/dns/libdns.la
+
+LIBNS_CFLAGS = \
+	-I$(top_srcdir)/lib/ns/include
+
+LIBNS_LIBS = \
+	$(top_builddir)/lib/ns/libns.la
+
+LIBIRS_CFLAGS = \
+	-I$(top_srcdir)/lib/irs/include
+
+LIBIRS_LIBS = \
+	$(top_builddir)/lib/irs/libirs.la
+
+LIBISCCFG_CFLAGS = \
+	-I$(top_srcdir)/lib/isccfg/include
+
+LIBISCCFG_LIBS = \
+	$(top_builddir)/lib/isccfg/libisccfg.la
+
+LIBISCCC_CFLAGS = \
+	-I$(top_srcdir)/lib/isccc/include/
+
+LIBISCCC_LIBS = \
+	$(top_builddir)/lib/isccc/libisccc.la
+
+LIBBIND9_CFLAGS = \
+	-I$(top_srcdir)/lib/bind9/include
+
+LIBBIND9_LIBS = \
+	$(top_builddir)/lib/bind9/libbind9.la
+
+check_LTLIBRARIES = libtest.la
+libtest_la_SOURCES = \
+	../include/tests/dns.h		\
+	../include/tests/isc.h		\
+	../include/tests/ns.h		\
+	dns.c				\
+	isc.c				\
+	ns.c
+
+LOG_COMPILER = $(top_builddir)/tests/unit-test-driver.sh
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(top_srcdir)/Makefile.top $(top_srcdir)/Makefile.tests $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign tests/libtest/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign tests/libtest/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+$(top_srcdir)/Makefile.top $(top_srcdir)/Makefile.tests $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-checkLTLIBRARIES:
+	-test -z "$(check_LTLIBRARIES)" || rm -f $(check_LTLIBRARIES)
+	@list='$(check_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+libtest.la: $(libtest_la_OBJECTS) $(libtest_la_DEPENDENCIES) $(EXTRA_libtest_la_DEPENDENCIES) 
+	$(AM_V_CCLD)$(LINK)  $(libtest_la_OBJECTS) $(libtest_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dns.Plo@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/isc.Plo@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ns.Plo@am__quote@ # am--include-marker
+
+$(am__depfiles_remade):
+	@$(MKDIR_P) $(@D)
+	@echo '# dummy' >$@-t && $(am__mv) $@-t $@
+
+am--depfiles: $(am__depfiles_remade)
+
+.c.o:
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+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+test-local: 
+unit-local: 
+doc-local: 
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+# Recover from deleted '.trs' file; this should ensure that
+# "rm -f foo.log; make foo.trs" re-run 'foo.test', and re-create
+# both 'foo.log' and 'foo.trs'.  Break the recipe in two subshells
+# to avoid problems with "make -n".
+.log.trs:
+	rm -f $< $@
+	$(MAKE) $(AM_MAKEFLAGS) $<
+
+# Leading 'am--fnord' is there to ensure the list of targets does not
+# expand to empty, as could happen e.g. with make check TESTS=''.
+am--fnord $(TEST_LOGS) $(TEST_LOGS:.log=.trs): $(am__force_recheck)
+am--force-recheck:
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+$(TEST_SUITE_LOG): $(TEST_LOGS)
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+	redo_bases=`for i in $$bases; do \
+	              am__f_ok $$i.trs && am__f_ok $$i.log || echo $$i; \
+	            done`; \
+	if test -n "$$redo_bases"; then \
+	  redo_logs=`for i in $$redo_bases; do echo $$i.log; done`; \
+	  redo_results=`for i in $$redo_bases; do echo $$i.trs; done`; \
+	  if $(am__make_dryrun); then :; else \
+	    rm -f $$redo_logs && rm -f $$redo_results || exit 1; \
+	  fi; \
+	fi; \
+	if test -n "$$am__remaking_logs"; then \
+	  echo "fatal: making $(TEST_SUITE_LOG): possible infinite" \
+	       "recursion detected" >&2; \
+	elif test -n "$$redo_logs"; then \
+	  am__remaking_logs=yes $(MAKE) $(AM_MAKEFLAGS) $$redo_logs; \
+	fi; \
+	if $(am__make_dryrun); then :; else \
+	  st=0;  \
+	  errmsg="fatal: making $(TEST_SUITE_LOG): failed to create"; \
+	  for i in $$redo_bases; do \
+	    test -f $$i.trs && test -r $$i.trs \
+	      || { echo "$$errmsg $$i.trs" >&2; st=1; }; \
+	    test -f $$i.log && test -r $$i.log \
+	      || { echo "$$errmsg $$i.log" >&2; st=1; }; \
+	  done; \
+	  test $$st -eq 0 || exit 1; \
+	fi
+	@$(am__sh_e_setup); $(am__tty_colors); $(am__set_TESTS_bases); \
+	ws='[ 	]'; \
+	results=`for b in $$bases; do echo $$b.trs; done`; \
+	test -n "$$results" || results=/dev/null; \
+	all=`  grep "^$$ws*:test-result:"           $$results | wc -l`; \
+	pass=` grep "^$$ws*:test-result:$$ws*PASS"  $$results | wc -l`; \
+	fail=` grep "^$$ws*:test-result:$$ws*FAIL"  $$results | wc -l`; \
+	skip=` grep "^$$ws*:test-result:$$ws*SKIP"  $$results | wc -l`; \
+	xfail=`grep "^$$ws*:test-result:$$ws*XFAIL" $$results | wc -l`; \
+	xpass=`grep "^$$ws*:test-result:$$ws*XPASS" $$results | wc -l`; \
+	error=`grep "^$$ws*:test-result:$$ws*ERROR" $$results | wc -l`; \
+	if test `expr $$fail + $$xpass + $$error` -eq 0; then \
+	  success=true; \
+	else \
+	  success=false; \
+	fi; \
+	br='==================='; br=$$br$$br$$br$$br; \
+	result_count () \
+	{ \
+	    if test x"$$1" = x"--maybe-color"; then \
+	      maybe_colorize=yes; \
+	    elif test x"$$1" = x"--no-color"; then \
+	      maybe_colorize=no; \
+	    else \
+	      echo "$@: invalid 'result_count' usage" >&2; exit 4; \
+	    fi; \
+	    shift; \
+	    desc=$$1 count=$$2; \
+	    if test $$maybe_colorize = yes && test $$count -gt 0; then \
+	      color_start=$$3 color_end=$$std; \
+	    else \
+	      color_start= color_end=; \
+	    fi; \
+	    echo "$${color_start}# $$desc $$count$${color_end}"; \
+	}; \
+	create_testsuite_report () \
+	{ \
+	  result_count $$1 "TOTAL:" $$all   "$$brg"; \
+	  result_count $$1 "PASS: " $$pass  "$$grn"; \
+	  result_count $$1 "SKIP: " $$skip  "$$blu"; \
+	  result_count $$1 "XFAIL:" $$xfail "$$lgn"; \
+	  result_count $$1 "FAIL: " $$fail  "$$red"; \
+	  result_count $$1 "XPASS:" $$xpass "$$red"; \
+	  result_count $$1 "ERROR:" $$error "$$mgn"; \
+	}; \
+	{								\
+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
+	    $(am__rst_title);						\
+	  create_testsuite_report --no-color;				\
+	  echo;								\
+	  echo ".. contents:: :depth: 2";				\
+	  echo;								\
+	  for b in $$bases; do echo $$b; done				\
+	    | $(am__create_global_log);					\
+	} >$(TEST_SUITE_LOG).tmp || exit 1;				\
+	mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG);			\
+	if $$success; then						\
+	  col="$$grn";							\
+	 else								\
+	  col="$$red";							\
+	  test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG);		\
+	fi;								\
+	echo "$${col}$$br$${std}"; 					\
+	echo "$${col}Testsuite summary"$(AM_TESTSUITE_SUMMARY_HEADER)"$${std}";	\
+	echo "$${col}$$br$${std}"; 					\
+	create_testsuite_report --maybe-color;				\
+	echo "$$col$$br$$std";						\
+	if $$success; then :; else					\
+	  echo "$${col}See $(subdir)/$(TEST_SUITE_LOG)$${std}";		\
+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
+	    echo "$${col}Please report to $(PACKAGE_BUGREPORT)$${std}";	\
+	  fi;								\
+	  echo "$$col$$br$$std";					\
+	fi;								\
+	$$success || exit 1
+
+check-TESTS: $(check_LTLIBRARIES)
+	@list='$(RECHECK_LOGS)';           test -z "$$list" || rm -f $$list
+	@list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
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+	log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+	exit $$?;
+recheck: all $(check_LTLIBRARIES)
+	@test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+	@set +e; $(am__set_TESTS_bases); \
+	bases=`for i in $$bases; do echo $$i; done \
+	         | $(am__list_recheck_tests)` || exit 1; \
+	log_list=`for i in $$bases; do echo $$i.log; done`; \
+	log_list=`echo $$log_list`; \
+	$(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+	        am__force_recheck=am--force-recheck \
+	        TEST_LOGS="$$log_list"; \
+	exit $$?
+.test.log:
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+	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+	--log-file $$b.log --trs-file $$b.trs \
+	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+	"$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@	@p='$<'; \
+@am__EXEEXT_TRUE@	$(am__set_b); \
+@am__EXEEXT_TRUE@	$(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+@am__EXEEXT_TRUE@	--log-file $$b.log --trs-file $$b.trs \
+@am__EXEEXT_TRUE@	$(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+@am__EXEEXT_TRUE@	"$$tst" $(AM_TESTS_FD_REDIRECT)
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_LTLIBRARIES)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
+all-am: Makefile
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkLTLIBRARIES clean-generic clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/dns.Plo
+	-rm -f ./$(DEPDIR)/isc.Plo
+	-rm -f ./$(DEPDIR)/ns.Plo
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+doc: doc-am
+
+doc-am: doc-local
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/dns.Plo
+	-rm -f ./$(DEPDIR)/isc.Plo
+	-rm -f ./$(DEPDIR)/ns.Plo
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+test: test-am
+
+test-am: test-local
+
+uninstall-am:
+
+unit: unit-am
+
+unit-am: unit-local
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+	check-am clean clean-checkLTLIBRARIES clean-generic \
+	clean-libtool cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir doc-am doc-local dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	recheck tags tags-am test-am test-local uninstall uninstall-am \
+	unit-am unit-local
+
+.PRECIOUS: Makefile
+
+
+unit-local: check
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tests/libtest/dns.c b/tests/libtest/dns.c
new file mode 100644
index 0000000..ae3748f
--- /dev/null
+++ b/tests/libtest/dns.c
@@ -0,0 +1,501 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include <inttypes.h>
+#include <sched.h> /* IWYU pragma: keep */
+#include <setjmp.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#define UNIT_TESTING
+#include <cmocka.h>
+
+#include <isc/buffer.h>
+#include <isc/file.h>
+#include <isc/hash.h>
+#include <isc/hex.h>
+#include <isc/lex.h>
+#include <isc/managers.h>
+#include <isc/mem.h>
+#include <isc/netmgr.h>
+#include <isc/os.h>
+#include <isc/print.h>
+#include <isc/result.h>
+#include <isc/stdio.h>
+#include <isc/string.h>
+#include <isc/task.h>
+#include <isc/timer.h>
+#include <isc/util.h>
+
+#include <dns/callbacks.h>
+#include <dns/db.h>
+#include <dns/fixedname.h>
+#include <dns/log.h>
+#include <dns/name.h>
+#include <dns/view.h>
+#include <dns/zone.h>
+
+#include <tests/dns.h>
+
+dns_zonemgr_t *zonemgr = NULL;
+
+/*
+ * Create a view.
+ */
+isc_result_t
+dns_test_makeview(const char *name, bool with_cache, dns_view_t **viewp) {
+	isc_result_t result;
+	dns_view_t *view = NULL;
+	dns_cache_t *cache = NULL;
+
+	result = dns_view_create(mctx, dns_rdataclass_in, name, &view);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	if (with_cache) {
+		result = dns_cache_create(mctx, mctx, taskmgr, timermgr,
+					  dns_rdataclass_in, "", "rbt", 0, NULL,
+					  &cache);
+		if (result != ISC_R_SUCCESS) {
+			dns_view_detach(&view);
+			return (result);
+		}
+
+		dns_view_setcache(view, cache, false);
+		/*
+		 * Reference count for "cache" is now at 2, so decrement it in
+		 * order for the cache to be automatically freed when "view"
+		 * gets freed.
+		 */
+		dns_cache_detach(&cache);
+	}
+
+	*viewp = view;
+
+	return (ISC_R_SUCCESS);
+}
+
+isc_result_t
+dns_test_makezone(const char *name, dns_zone_t **zonep, dns_view_t *view,
+		  bool createview) {
+	dns_fixedname_t fixed_origin;
+	dns_zone_t *zone = NULL;
+	isc_result_t result;
+	dns_name_t *origin;
+
+	REQUIRE(view == NULL || !createview);
+
+	/*
+	 * Create the zone structure.
+	 */
+	result = dns_zone_create(&zone, mctx);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	/*
+	 * Set zone type and origin.
+	 */
+	dns_zone_settype(zone, dns_zone_primary);
+	origin = dns_fixedname_initname(&fixed_origin);
+	result = dns_name_fromstring(origin, name, 0, NULL);
+	if (result != ISC_R_SUCCESS) {
+		goto detach_zone;
+	}
+	result = dns_zone_setorigin(zone, origin);
+	if (result != ISC_R_SUCCESS) {
+		goto detach_zone;
+	}
+
+	/*
+	 * If requested, create a view.
+	 */
+	if (createview) {
+		result = dns_test_makeview("view", false, &view);
+		if (result != ISC_R_SUCCESS) {
+			goto detach_zone;
+		}
+	}
+
+	/*
+	 * If a view was passed as an argument or created above, attach the
+	 * created zone to it.  Otherwise, set the zone's class to IN.
+	 */
+	if (view != NULL) {
+		dns_zone_setview(zone, view);
+		dns_zone_setclass(zone, view->rdclass);
+		dns_view_addzone(view, zone);
+	} else {
+		dns_zone_setclass(zone, dns_rdataclass_in);
+	}
+
+	*zonep = zone;
+
+	return (ISC_R_SUCCESS);
+
+detach_zone:
+	dns_zone_detach(&zone);
+
+	return (result);
+}
+
+isc_result_t
+dns_test_setupzonemgr(void) {
+	isc_result_t result;
+	REQUIRE(zonemgr == NULL);
+
+	result = dns_zonemgr_create(mctx, taskmgr, timermgr, netmgr, &zonemgr);
+	return (result);
+}
+
+isc_result_t
+dns_test_managezone(dns_zone_t *zone) {
+	isc_result_t result;
+	REQUIRE(zonemgr != NULL);
+
+	result = dns_zonemgr_setsize(zonemgr, 1);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	result = dns_zonemgr_managezone(zonemgr, zone);
+	return (result);
+}
+
+void
+dns_test_releasezone(dns_zone_t *zone) {
+	REQUIRE(zonemgr != NULL);
+	dns_zonemgr_releasezone(zonemgr, zone);
+}
+
+void
+dns_test_closezonemgr(void) {
+	REQUIRE(zonemgr != NULL);
+
+	dns_zonemgr_shutdown(zonemgr);
+	dns_zonemgr_detach(&zonemgr);
+}
+
+/*
+ * Sleep for 'usec' microseconds.
+ */
+void
+dns_test_nap(uint32_t usec) {
+	struct timespec ts;
+
+	ts.tv_sec = usec / 1000000;
+	ts.tv_nsec = (usec % 1000000) * 1000;
+	nanosleep(&ts, NULL);
+}
+
+isc_result_t
+dns_test_loaddb(dns_db_t **db, dns_dbtype_t dbtype, const char *origin,
+		const char *testfile) {
+	isc_result_t result;
+	dns_fixedname_t fixed;
+	dns_name_t *name;
+
+	name = dns_fixedname_initname(&fixed);
+
+	result = dns_name_fromstring(name, origin, 0, NULL);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	result = dns_db_create(mctx, "rbt", name, dbtype, dns_rdataclass_in, 0,
+			       NULL, db);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	result = dns_db_load(*db, testfile, dns_masterformat_text, 0);
+	return (result);
+}
+
+static int
+fromhex(char c) {
+	if (c >= '0' && c <= '9') {
+		return (c - '0');
+	} else if (c >= 'a' && c <= 'f') {
+		return (c - 'a' + 10);
+	} else if (c >= 'A' && c <= 'F') {
+		return (c - 'A' + 10);
+	}
+
+	printf("bad input format: %02x\n", c);
+	exit(3);
+}
+
+/*
+ * Format contents of given memory region as a hex string, using the buffer
+ * of length 'buflen' pointed to by 'buf'. 'buflen' must be at least three
+ * times 'len'. Always returns 'buf'.
+ */
+char *
+dns_test_tohex(const unsigned char *data, size_t len, char *buf,
+	       size_t buflen) {
+	isc_constregion_t source = { .base = data, .length = len };
+	isc_buffer_t target;
+	isc_result_t result;
+
+	memset(buf, 0, buflen);
+	isc_buffer_init(&target, buf, buflen);
+	result = isc_hex_totext((isc_region_t *)&source, 1, " ", &target);
+	assert_int_equal(result, ISC_R_SUCCESS);
+
+	return (buf);
+}
+
+isc_result_t
+dns_test_getdata(const char *file, unsigned char *buf, size_t bufsiz,
+		 size_t *sizep) {
+	isc_result_t result;
+	unsigned char *bp;
+	char *rp, *wp;
+	char s[BUFSIZ];
+	size_t len, i;
+	FILE *f = NULL;
+	int n;
+
+	result = isc_stdio_open(file, "r", &f);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	bp = buf;
+	while (fgets(s, sizeof(s), f) != NULL) {
+		rp = s;
+		wp = s;
+		len = 0;
+		while (*rp != '\0') {
+			if (*rp == '#') {
+				break;
+			}
+			if (*rp != ' ' && *rp != '\t' && *rp != '\r' &&
+			    *rp != '\n')
+			{
+				*wp++ = *rp;
+				len++;
+			}
+			rp++;
+		}
+		if (len == 0U) {
+			continue;
+		}
+		if (len % 2 != 0U) {
+			result = ISC_R_UNEXPECTEDEND;
+			break;
+		}
+		if (len > bufsiz * 2) {
+			result = ISC_R_NOSPACE;
+			break;
+		}
+		rp = s;
+		for (i = 0; i < len; i += 2) {
+			n = fromhex(*rp++);
+			n *= 16;
+			n += fromhex(*rp++);
+			*bp++ = n;
+		}
+	}
+
+	if (result == ISC_R_SUCCESS) {
+		*sizep = bp - buf;
+	}
+
+	isc_stdio_close(f);
+	return (result);
+}
+
+static void
+nullmsg(dns_rdatacallbacks_t *cb, const char *fmt, ...) {
+	UNUSED(cb);
+	UNUSED(fmt);
+}
+
+isc_result_t
+dns_test_rdatafromstring(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
+			 dns_rdatatype_t rdtype, unsigned char *dst,
+			 size_t dstlen, const char *src, bool warnings) {
+	dns_rdatacallbacks_t callbacks;
+	isc_buffer_t source, target;
+	isc_lex_t *lex = NULL;
+	isc_lexspecials_t specials = { 0 };
+	isc_result_t result;
+	size_t length;
+
+	REQUIRE(rdata != NULL);
+	REQUIRE(DNS_RDATA_INITIALIZED(rdata));
+	REQUIRE(dst != NULL);
+	REQUIRE(src != NULL);
+
+	/*
+	 * Set up source to hold the input string.
+	 */
+	length = strlen(src);
+	isc_buffer_constinit(&source, src, length);
+	isc_buffer_add(&source, length);
+
+	/*
+	 * Create a lexer as one is required by dns_rdata_fromtext().
+	 */
+	result = isc_lex_create(mctx, 64, &lex);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	/*
+	 * Set characters which will be treated as valid multi-line RDATA
+	 * delimiters while reading the source string.  These should match
+	 * specials from lib/dns/master.c.
+	 */
+	specials[0] = 1;
+	specials['('] = 1;
+	specials[')'] = 1;
+	specials['"'] = 1;
+	isc_lex_setspecials(lex, specials);
+
+	/*
+	 * Expect DNS masterfile comments.
+	 */
+	isc_lex_setcomments(lex, ISC_LEXCOMMENT_DNSMASTERFILE);
+
+	/*
+	 * Point lexer at source.
+	 */
+	result = isc_lex_openbuffer(lex, &source);
+	if (result != ISC_R_SUCCESS) {
+		goto destroy_lexer;
+	}
+
+	/*
+	 * Set up target for storing uncompressed wire form of provided RDATA.
+	 */
+	isc_buffer_init(&target, dst, dstlen);
+
+	/*
+	 * Set up callbacks so warnings and errors are not printed.
+	 */
+	if (!warnings) {
+		dns_rdatacallbacks_init(&callbacks);
+		callbacks.warn = callbacks.error = nullmsg;
+	}
+
+	/*
+	 * Parse input string, determining result.
+	 */
+	result = dns_rdata_fromtext(rdata, rdclass, rdtype, lex, dns_rootname,
+				    0, mctx, &target, &callbacks);
+
+destroy_lexer:
+	isc_lex_destroy(&lex);
+
+	return (result);
+}
+
+void
+dns_test_namefromstring(const char *namestr, dns_fixedname_t *fname) {
+	size_t length;
+	isc_buffer_t *b = NULL;
+	isc_result_t result;
+	dns_name_t *name;
+
+	length = strlen(namestr);
+
+	name = dns_fixedname_initname(fname);
+
+	isc_buffer_allocate(mctx, &b, length);
+
+	isc_buffer_putmem(b, (const unsigned char *)namestr, length);
+	result = dns_name_fromtext(name, b, dns_rootname, 0, NULL);
+	assert_int_equal(result, ISC_R_SUCCESS);
+
+	isc_buffer_free(&b);
+}
+
+isc_result_t
+dns_test_difffromchanges(dns_diff_t *diff, const zonechange_t *changes,
+			 bool warnings) {
+	isc_result_t result = ISC_R_SUCCESS;
+	unsigned char rdata_buf[1024];
+	dns_difftuple_t *tuple = NULL;
+	isc_consttextregion_t region;
+	dns_rdatatype_t rdatatype;
+	dns_fixedname_t fixedname;
+	dns_rdata_t rdata;
+	dns_name_t *name;
+	size_t i;
+
+	REQUIRE(diff != NULL);
+	REQUIRE(changes != NULL);
+
+	dns_diff_init(mctx, diff);
+
+	for (i = 0; changes[i].owner != NULL; i++) {
+		/*
+		 * Parse owner name.
+		 */
+		name = dns_fixedname_initname(&fixedname);
+		result = dns_name_fromstring(name, changes[i].owner, 0, mctx);
+		if (result != ISC_R_SUCCESS) {
+			break;
+		}
+
+		/*
+		 * Parse RDATA type.
+		 */
+		region.base = changes[i].type;
+		region.length = strlen(changes[i].type);
+		result = dns_rdatatype_fromtext(&rdatatype,
+						(isc_textregion_t *)&region);
+		if (result != ISC_R_SUCCESS) {
+			break;
+		}
+
+		/*
+		 * Parse RDATA.
+		 */
+		dns_rdata_init(&rdata);
+		result = dns_test_rdatafromstring(
+			&rdata, dns_rdataclass_in, rdatatype, rdata_buf,
+			sizeof(rdata_buf), changes[i].rdata, warnings);
+		if (result != ISC_R_SUCCESS) {
+			break;
+		}
+
+		/*
+		 * Create a diff tuple for the parsed change and append it to
+		 * the diff.
+		 */
+		result = dns_difftuple_create(mctx, changes[i].op, name,
+					      changes[i].ttl, &rdata, &tuple);
+		if (result != ISC_R_SUCCESS) {
+			break;
+		}
+		dns_diff_append(diff, &tuple);
+	}
+
+	if (result != ISC_R_SUCCESS) {
+		dns_diff_clear(diff);
+	}
+
+	return (result);
+}
diff --git a/tests/libtest/isc.c b/tests/libtest/isc.c
new file mode 100644
index 0000000..970a4b1
--- /dev/null
+++ b/tests/libtest/isc.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include <inttypes.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <isc/buffer.h>
+#include <isc/hash.h>
+#include <isc/managers.h>
+#include <isc/mem.h>
+#include <isc/os.h>
+#include <isc/string.h>
+#include <isc/task.h>
+#include <isc/timer.h>
+#include <isc/util.h>
+
+#include "netmgr_p.h"
+#include "task_p.h"
+#include "timer_p.h"
+
+#include <tests/isc.h>
+
+isc_mem_t *mctx = NULL;
+isc_taskmgr_t *taskmgr = NULL;
+isc_timermgr_t *timermgr = NULL;
+isc_nm_t *netmgr = NULL;
+unsigned int workers = 0;
+isc_task_t *maintask = NULL;
+
+int
+setup_managers(void **state) {
+	isc_result_t result;
+
+	UNUSED(state);
+
+	REQUIRE(mctx != NULL);
+
+	if (workers == 0) {
+		char *env_workers = getenv("ISC_TASK_WORKERS");
+		if (env_workers != NULL) {
+			workers = atoi(env_workers);
+		} else {
+			workers = isc_os_ncpus();
+		}
+		INSIST(workers > 0);
+	}
+
+	result = isc_managers_create(mctx, workers, 0, &netmgr, &taskmgr,
+				     &timermgr);
+	if (result != ISC_R_SUCCESS) {
+		return (-1);
+	}
+
+	result = isc_task_create_bound(taskmgr, 0, &maintask, 0);
+	if (result != ISC_R_SUCCESS) {
+		return (-1);
+	}
+
+	isc_taskmgr_setexcltask(taskmgr, maintask);
+
+	return (0);
+}
+
+int
+teardown_managers(void **state) {
+	UNUSED(state);
+
+	isc_task_detach(&maintask);
+	isc_managers_destroy(&netmgr, &taskmgr, &timermgr);
+
+	return (0);
+}
diff --git a/tests/libtest/ns.c b/tests/libtest/ns.c
new file mode 100644
index 0000000..4a53ad8
--- /dev/null
+++ b/tests/libtest/ns.c
@@ -0,0 +1,669 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*! \file */
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <isc/buffer.h>
+#include <isc/file.h>
+#include <isc/hash.h>
+#include <isc/managers.h>
+#include <isc/mem.h>
+#include <isc/netmgr.h>
+#include <isc/os.h>
+#include <isc/print.h>
+#include <isc/random.h>
+#include <isc/resource.h>
+#include <isc/result.h>
+#include <isc/stdio.h>
+#include <isc/string.h>
+#include <isc/task.h>
+#include <isc/timer.h>
+#include <isc/util.h>
+
+#include <dns/cache.h>
+#include <dns/db.h>
+#include <dns/dispatch.h>
+#include <dns/fixedname.h>
+#include <dns/log.h>
+#include <dns/name.h>
+#include <dns/view.h>
+#include <dns/zone.h>
+
+#include <ns/client.h>
+#include <ns/hooks.h>
+#include <ns/interfacemgr.h>
+#include <ns/server.h>
+
+#include <tests/ns.h>
+
+dns_dispatchmgr_t *dispatchmgr = NULL;
+ns_clientmgr_t *clientmgr = NULL;
+ns_interfacemgr_t *interfacemgr = NULL;
+ns_server_t *sctx = NULL;
+bool debug_mem_record = true;
+
+static isc_result_t
+matchview(isc_netaddr_t *srcaddr, isc_netaddr_t *destaddr,
+	  dns_message_t *message, dns_aclenv_t *env, isc_result_t *sigresultp,
+	  dns_view_t **viewp) {
+	UNUSED(srcaddr);
+	UNUSED(destaddr);
+	UNUSED(message);
+	UNUSED(env);
+	UNUSED(sigresultp);
+	UNUSED(viewp);
+
+	return (ISC_R_NOTIMPLEMENTED);
+}
+
+int
+setup_server(void **state) {
+	isc_result_t result;
+	ns_listenlist_t *listenon = NULL;
+	in_port_t port = 5300 + isc_random8();
+
+	setup_managers(state);
+
+	ns_server_create(mctx, matchview, &sctx);
+
+	result = dns_dispatchmgr_create(mctx, netmgr, &dispatchmgr);
+	if (result != ISC_R_SUCCESS) {
+		return (-1);
+	}
+
+	result = ns_interfacemgr_create(mctx, sctx, taskmgr, timermgr, netmgr,
+					dispatchmgr, maintask, NULL, workers,
+					false, &interfacemgr);
+	if (result != ISC_R_SUCCESS) {
+		return (-1);
+	}
+
+	result = ns_listenlist_default(mctx, port, true, AF_INET, &listenon);
+	if (result != ISC_R_SUCCESS) {
+		return (-1);
+	}
+
+	ns_interfacemgr_setlistenon4(interfacemgr, listenon);
+	ns_listenlist_detach(&listenon);
+
+	clientmgr = ns_interfacemgr_getclientmgr(interfacemgr);
+
+	return (0);
+}
+
+int
+teardown_server(void **state) {
+	if (interfacemgr != NULL) {
+		ns_interfacemgr_shutdown(interfacemgr);
+		ns_interfacemgr_detach(&interfacemgr);
+	}
+
+	if (dispatchmgr != NULL) {
+		dns_dispatchmgr_detach(&dispatchmgr);
+	}
+
+	if (sctx != NULL) {
+		ns_server_detach(&sctx);
+	}
+
+	teardown_managers(state);
+	return (0);
+}
+
+static dns_zone_t *served_zone = NULL;
+
+/*
+ * We don't want to use netmgr-based client accounting, we need to emulate it.
+ */
+atomic_uint_fast32_t client_refs[32];
+atomic_uintptr_t client_addrs[32];
+
+void
+isc__nmhandle_attach(isc_nmhandle_t *source, isc_nmhandle_t **targetp FLARG) {
+	ns_client_t *client = (ns_client_t *)source;
+	int i;
+
+	for (i = 0; i < 32; i++) {
+		if (atomic_load(&client_addrs[i]) == (uintptr_t)client) {
+			break;
+		}
+	}
+	INSIST(i < 32);
+	INSIST(atomic_load(&client_refs[i]) > 0);
+
+	atomic_fetch_add(&client_refs[i], 1);
+
+	*targetp = source;
+	return;
+}
+
+void
+isc__nmhandle_detach(isc_nmhandle_t **handlep FLARG) {
+	isc_nmhandle_t *handle = *handlep;
+	ns_client_t *client = (ns_client_t *)handle;
+	int i;
+
+	*handlep = NULL;
+
+	for (i = 0; i < 32; i++) {
+		if (atomic_load(&client_addrs[i]) == (uintptr_t)client) {
+			break;
+		}
+	}
+	INSIST(i < 32);
+
+	if (atomic_fetch_sub(&client_refs[i], 1) == 1) {
+		dns_view_detach(&client->view);
+		client->state = 4;
+		ns__client_reset_cb(client);
+		ns__client_put_cb(client);
+		isc_mem_put(mctx, client, sizeof(ns_client_t));
+		atomic_store(&client_addrs[i], (uintptr_t)NULL);
+	}
+
+	return;
+}
+
+isc_result_t
+ns_test_serve_zone(const char *zonename, const char *filename,
+		   dns_view_t *view) {
+	isc_result_t result;
+	dns_db_t *db = NULL;
+
+	/*
+	 * Prepare zone structure for further processing.
+	 */
+	result = dns_test_makezone(zonename, &served_zone, view, false);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	/*
+	 * Start zone manager.
+	 */
+	result = dns_test_setupzonemgr();
+	if (result != ISC_R_SUCCESS) {
+		goto free_zone;
+	}
+
+	/*
+	 * Add the zone to the zone manager.
+	 */
+	result = dns_test_managezone(served_zone);
+	if (result != ISC_R_SUCCESS) {
+		goto close_zonemgr;
+	}
+
+	view->nocookieudp = 512;
+
+	/*
+	 * Set path to the master file for the zone and then load it.
+	 */
+	dns_zone_setfile(served_zone, filename, dns_masterformat_text,
+			 &dns_master_style_default);
+	result = dns_zone_load(served_zone, false);
+	if (result != ISC_R_SUCCESS) {
+		goto release_zone;
+	}
+
+	/*
+	 * The zone should now be loaded; test it.
+	 */
+	result = dns_zone_getdb(served_zone, &db);
+	if (result != ISC_R_SUCCESS) {
+		goto release_zone;
+	}
+	if (db != NULL) {
+		dns_db_detach(&db);
+	}
+
+	return (ISC_R_SUCCESS);
+
+release_zone:
+	dns_test_releasezone(served_zone);
+close_zonemgr:
+	dns_test_closezonemgr();
+free_zone:
+	dns_zone_detach(&served_zone);
+
+	return (result);
+}
+
+void
+ns_test_cleanup_zone(void) {
+	dns_test_releasezone(served_zone);
+	dns_test_closezonemgr();
+
+	dns_zone_detach(&served_zone);
+}
+
+isc_result_t
+ns_test_getclient(ns_interface_t *ifp0, bool tcp, ns_client_t **clientp) {
+	isc_result_t result;
+	ns_client_t *client = isc_mem_get(mctx, sizeof(ns_client_t));
+	int i;
+
+	UNUSED(ifp0);
+	UNUSED(tcp);
+
+	result = ns__client_setup(client, clientmgr, true);
+
+	for (i = 0; i < 32; i++) {
+		if (atomic_load(&client_addrs[i]) == (uintptr_t)NULL ||
+		    atomic_load(&client_addrs[i]) == (uintptr_t)client)
+		{
+			break;
+		}
+	}
+	REQUIRE(i < 32);
+
+	atomic_store(&client_refs[i], 2);
+	atomic_store(&client_addrs[i], (uintptr_t)client);
+	client->handle = (isc_nmhandle_t *)client; /* Hack */
+	*clientp = client;
+
+	return (result);
+}
+
+/*%
+ * Synthesize a DNS message based on supplied QNAME, QTYPE and flags, then
+ * parse it and store the results in client->message.
+ */
+static isc_result_t
+attach_query_msg_to_client(ns_client_t *client, const char *qnamestr,
+			   dns_rdatatype_t qtype, unsigned int qflags) {
+	dns_rdataset_t *qrdataset = NULL;
+	dns_message_t *message = NULL;
+	unsigned char query[65536];
+	dns_name_t *qname = NULL;
+	isc_buffer_t querybuf;
+	dns_compress_t cctx;
+	isc_result_t result;
+
+	REQUIRE(client != NULL);
+	REQUIRE(qnamestr != NULL);
+
+	/*
+	 * Create a new DNS message holding a query.
+	 */
+	dns_message_create(mctx, DNS_MESSAGE_INTENTRENDER, &message);
+
+	/*
+	 * Set query ID to a random value.
+	 */
+	message->id = isc_random16();
+
+	/*
+	 * Set query flags as requested by the caller.
+	 */
+	message->flags = qflags;
+
+	/*
+	 * Allocate structures required to construct the query.
+	 */
+	result = dns_message_gettemprdataset(message, &qrdataset);
+	if (result != ISC_R_SUCCESS) {
+		goto destroy_message;
+	}
+	result = dns_message_gettempname(message, &qname);
+	if (result != ISC_R_SUCCESS) {
+		goto put_rdataset;
+	}
+
+	/*
+	 * Convert "qnamestr" to a DNS name, create a question rdataset of
+	 * class IN and type "qtype", link the two and add the result to the
+	 * QUESTION section of the query.
+	 */
+	result = dns_name_fromstring(qname, qnamestr, 0, mctx);
+	if (result != ISC_R_SUCCESS) {
+		goto put_name;
+	}
+	dns_rdataset_makequestion(qrdataset, dns_rdataclass_in, qtype);
+	ISC_LIST_APPEND(qname->list, qrdataset, link);
+	dns_message_addname(message, qname, DNS_SECTION_QUESTION);
+
+	/*
+	 * Render the query.
+	 */
+	dns_compress_init(&cctx, -1, mctx);
+	isc_buffer_init(&querybuf, query, sizeof(query));
+	result = dns_message_renderbegin(message, &cctx, &querybuf);
+	if (result != ISC_R_SUCCESS) {
+		goto destroy_message;
+	}
+	result = dns_message_rendersection(message, DNS_SECTION_QUESTION, 0);
+	if (result != ISC_R_SUCCESS) {
+		goto destroy_message;
+	}
+	result = dns_message_renderend(message);
+	if (result != ISC_R_SUCCESS) {
+		goto destroy_message;
+	}
+	dns_compress_invalidate(&cctx);
+
+	/*
+	 * Destroy the created message as it was rendered into "querybuf" and
+	 * the latter is all we are going to need from now on.
+	 */
+	dns_message_detach(&message);
+
+	/*
+	 * Parse the rendered query, storing results in client->message.
+	 */
+	isc_buffer_first(&querybuf);
+	return (dns_message_parse(client->message, &querybuf, 0));
+
+put_name:
+	dns_message_puttempname(message, &qname);
+put_rdataset:
+	dns_message_puttemprdataset(message, &qrdataset);
+destroy_message:
+	dns_message_detach(&message);
+
+	return (result);
+}
+
+/*%
+ * A hook action which stores the query context pointed to by "arg" at
+ * "data".  Causes execution to be interrupted at hook insertion
+ * point.
+ */
+static ns_hookresult_t
+extract_qctx(void *arg, void *data, isc_result_t *resultp) {
+	query_ctx_t **qctxp;
+	query_ctx_t *qctx;
+
+	REQUIRE(arg != NULL);
+	REQUIRE(data != NULL);
+	REQUIRE(resultp != NULL);
+
+	/*
+	 * qctx is a stack variable in lib/ns/query.c.  Its contents need to be
+	 * duplicated or otherwise they will become invalidated once the stack
+	 * gets unwound.
+	 */
+	qctx = isc_mem_get(mctx, sizeof(*qctx));
+	if (qctx != NULL) {
+		memmove(qctx, (query_ctx_t *)arg, sizeof(*qctx));
+	}
+
+	qctxp = (query_ctx_t **)data;
+	/*
+	 * If memory allocation failed, the supplied pointer will simply be set
+	 * to NULL.  We rely on the user of this hook to react properly.
+	 */
+	*qctxp = qctx;
+	*resultp = ISC_R_UNSET;
+
+	return (NS_HOOK_RETURN);
+}
+
+/*%
+ * Initialize a query context for "client" and store it in "qctxp".
+ *
+ * Requires:
+ *
+ * 	\li "client->message" to hold a parsed DNS query.
+ */
+static isc_result_t
+create_qctx_for_client(ns_client_t *client, query_ctx_t **qctxp) {
+	ns_hooktable_t *saved_hook_table = NULL, *query_hooks = NULL;
+	const ns_hook_t hook = {
+		.action = extract_qctx,
+		.action_data = qctxp,
+	};
+
+	REQUIRE(client != NULL);
+	REQUIRE(qctxp != NULL);
+	REQUIRE(*qctxp == NULL);
+
+	/*
+	 * Call ns_query_start() to initialize a query context for given
+	 * client, but first hook into query_setup() so that we can just
+	 * extract an initialized query context, without kicking off any
+	 * further processing.  Make sure we do not overwrite any previously
+	 * set hooks.
+	 */
+
+	ns_hooktable_create(mctx, &query_hooks);
+	ns_hook_add(query_hooks, mctx, NS_QUERY_SETUP, &hook);
+
+	saved_hook_table = ns__hook_table;
+	ns__hook_table = query_hooks;
+
+	ns_query_start(client, client->handle);
+
+	ns__hook_table = saved_hook_table;
+	ns_hooktable_free(mctx, (void **)&query_hooks);
+
+	isc_nmhandle_detach(&client->reqhandle);
+
+	if (*qctxp == NULL) {
+		return (ISC_R_NOMEMORY);
+	} else {
+		return (ISC_R_SUCCESS);
+	}
+}
+
+isc_result_t
+ns_test_qctx_create(const ns_test_qctx_create_params_t *params,
+		    query_ctx_t **qctxp) {
+	ns_client_t *client = NULL;
+	isc_result_t result;
+	isc_nmhandle_t *handle = NULL;
+
+	REQUIRE(params != NULL);
+	REQUIRE(params->qname != NULL);
+	REQUIRE(qctxp != NULL);
+	REQUIRE(*qctxp == NULL);
+
+	/*
+	 * Allocate and initialize a client structure.
+	 */
+	result = ns_test_getclient(NULL, false, &client);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+	TIME_NOW(&client->tnow);
+
+	/*
+	 * Every client needs to belong to a view.
+	 */
+	result = dns_test_makeview("view", params->with_cache, &client->view);
+	if (result != ISC_R_SUCCESS) {
+		goto detach_client;
+	}
+
+	/*
+	 * Synthesize a DNS query using given QNAME, QTYPE and flags, storing
+	 * it in client->message.
+	 */
+	result = attach_query_msg_to_client(client, params->qname,
+					    params->qtype, params->qflags);
+	if (result != ISC_R_SUCCESS) {
+		goto detach_view;
+	}
+
+	/*
+	 * Allow recursion for the client.  As NS_CLIENTATTR_RA normally gets
+	 * set in ns__client_request(), i.e. earlier than the unit tests hook
+	 * into the call chain, just set it manually.
+	 */
+	client->attributes |= NS_CLIENTATTR_RA;
+
+	/*
+	 * Create a query context for a client sending the previously
+	 * synthesized query.
+	 */
+	result = create_qctx_for_client(client, qctxp);
+	if (result != ISC_R_SUCCESS) {
+		goto detach_query;
+	}
+
+	/*
+	 * The reference count for "client" is now at 2, so we need to
+	 * decrement it in order for it to drop to zero when "qctx" gets
+	 * destroyed.
+	 */
+	handle = client->handle;
+	isc_nmhandle_detach(&handle);
+
+	return (ISC_R_SUCCESS);
+
+detach_query:
+	dns_message_detach(&client->message);
+detach_view:
+	dns_view_detach(&client->view);
+detach_client:
+	isc_nmhandle_detach(&client->handle);
+
+	return (result);
+}
+
+void
+ns_test_qctx_destroy(query_ctx_t **qctxp) {
+	query_ctx_t *qctx;
+
+	REQUIRE(qctxp != NULL);
+	REQUIRE(*qctxp != NULL);
+
+	qctx = *qctxp;
+	*qctxp = NULL;
+
+	if (qctx->zone != NULL) {
+		dns_zone_detach(&qctx->zone);
+	}
+	if (qctx->db != NULL) {
+		dns_db_detach(&qctx->db);
+	}
+	if (qctx->client != NULL) {
+		isc_nmhandle_detach(&qctx->client->handle);
+	}
+
+	isc_mem_put(mctx, qctx, sizeof(*qctx));
+}
+
+ns_hookresult_t
+ns_test_hook_catch_call(void *arg, void *data, isc_result_t *resultp) {
+	UNUSED(arg);
+	UNUSED(data);
+
+	*resultp = ISC_R_UNSET;
+
+	return (NS_HOOK_RETURN);
+}
+
+isc_result_t
+ns_test_loaddb(dns_db_t **db, dns_dbtype_t dbtype, const char *origin,
+	       const char *testfile) {
+	isc_result_t result;
+	dns_fixedname_t fixed;
+	dns_name_t *name;
+
+	name = dns_fixedname_initname(&fixed);
+
+	result = dns_name_fromstring(name, origin, 0, NULL);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	result = dns_db_create(mctx, "rbt", name, dbtype, dns_rdataclass_in, 0,
+			       NULL, db);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	result = dns_db_load(*db, testfile, dns_masterformat_text, 0);
+	return (result);
+}
+
+static int
+fromhex(char c) {
+	if (c >= '0' && c <= '9') {
+		return (c - '0');
+	} else if (c >= 'a' && c <= 'f') {
+		return (c - 'a' + 10);
+	} else if (c >= 'A' && c <= 'F') {
+		return (c - 'A' + 10);
+	}
+
+	printf("bad input format: %02x\n", c);
+	exit(3);
+}
+
+isc_result_t
+ns_test_getdata(const char *file, unsigned char *buf, size_t bufsiz,
+		size_t *sizep) {
+	isc_result_t result;
+	unsigned char *bp;
+	char *rp, *wp;
+	char s[BUFSIZ];
+	size_t len, i;
+	FILE *f = NULL;
+	int n;
+
+	result = isc_stdio_open(file, "r", &f);
+	if (result != ISC_R_SUCCESS) {
+		return (result);
+	}
+
+	bp = buf;
+	while (fgets(s, sizeof(s), f) != NULL) {
+		rp = s;
+		wp = s;
+		len = 0;
+		while (*rp != '\0') {
+			if (*rp == '#') {
+				break;
+			}
+			if (*rp != ' ' && *rp != '\t' && *rp != '\r' &&
+			    *rp != '\n')
+			{
+				*wp++ = *rp;
+				len++;
+			}
+			rp++;
+		}
+		if (len == 0U) {
+			continue;
+		}
+		if (len % 2 != 0U) {
+			CHECK(ISC_R_UNEXPECTEDEND);
+		}
+		if (len > bufsiz * 2) {
+			CHECK(ISC_R_NOSPACE);
+		}
+		rp = s;
+		for (i = 0; i < len; i += 2) {
+			n = fromhex(*rp++);
+			n *= 16;
+			n += fromhex(*rp++);
+			*bp++ = n;
+		}
+	}
+
+	*sizep = bp - buf;
+
+	result = ISC_R_SUCCESS;
+
+cleanup:
+	isc_stdio_close(f);
+	return (result);
+}